*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    list-style: none;
}
img{
    display: block;
    width: 50px;
    height: 50px;
    margin-right: 10px;
}
.html,body{
    background-color: rgb(246,246,246);
}
.box{
    width: 500px;
    margin: 0 auto;
}
.header{
    height: 120px;
    background-color: white;
    padding: 0 20px;
    h2{
        line-height: 40px;
    }
    .tit{
        height: 80px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        line-height: 30px;
        text-align: center;
        color: #ccc;
    }
}
h3{
    width: 100%;
    text-align: center;
    line-height: 50px;
}
ul{
    li{
        margin: 0 10px 10px;
        background-color: white;
        padding: 10px;
        .title{
            display: flex;
            justify-content: space-between;
            align-items: center;
            div{
                display: flex;
                margin-bottom: 10px;
                h4{
                    line-height: 50px;
                }
            } 
        }
        p{
            margin-top: 20px;
            line-height: 30px;
        }
    }
}
.black{
    color: black;
}